[Haskell-cafe] Building SDL-image package on Windows

[Garrick Chin]

Hello,

Adding the main macro undef has solved the linker errors and both SDL_image
and SDL_ttf build and install correctly now.  For both SDL_image and SDL_ttf
only the ./Graphics/UI/SDL/Image/Version.hsc file needed to be changed,
pasting in the undef macro under "#include SDL_image.h" and "#include
SDL_ttf.h" respectively.  Thanks for your help!

It would probably be a good idea to include these notes in a WIN32 file like
for the SDL package for other users.  I sent an e-mail to the listed
maintainer on Hackage yesterday, is that the best way to about doing this?

On Wed, Aug 27, 2008 at 4:40 AM, Bit Connor <bit at mutantlemon.com> wrote:

> Hi, I wrote the instructions in the WIN32 file.
>
> This looks like the same problem that I originally had with the SDL
> package, mangling of "main" function in C land by the hand of the C
> SDL.h include file.
>
> If you look at the .hsc files from the SDL package, you will see the
> fix I applied at the top of each file, after #including SDL.h the evil
> "main" macro is undefined:
>
> #include "SDL.h"
> #ifdef main
> #undef main
> #endif
>
> Probably the same must be done for all the .hsc files in SDL-image(and
> probably also all other haskell SDL addon packages).
>
> Please let me know if this information is helpful.
>
> 2008/8/27 Garrick Chin <nonexistent.ftp+haskellcafe at gmail.com<nonexistent.ftp%2Bhaskellcafe at gmail.com>
> >:
> > Hello,
> >
> > I'm trying to build the latest SDL-image package (0.5.2) from Hackage on
> > Windows and encountering problems.  These are the steps I've taken so
> far:
> >
> > 1.  Downloaded SDL 1.2.13 developmental library for Mingw32 to
> > E:\SDL-1.2.13, and SDL_image 1.2.6 developmental library for VC8 to
> > E:\SDL_image-1.2.6.
> > 2.  Installed SDL package from Hackage, modifying the SDL.cabal according
> to
> > the included WIN32 readme file and then runghc Setup.lhs
> > configure/build/install
> > 3.  Downloaded the SDL-image package from Hackage, modified the
> > SDL-image.cabal file to add the line "Include-Dirs:
> > E:\SDL_image-1.2.6\include\SDL, E:\SDL-1.2.13\include\SDL" so Cabal can
> find
> > the header files.  After doing "runghc Setup.lhs configure", "runghc
> > Setup.lhs build -v" gives me the following output:
> >
> > Creating dist\build (and its parents)
> > Creating dist\build\autogen (and its parents)
> > Preprocessing library SDL-image-0.5.2...
> > Creating dist\build\Graphics\UI\SDL\Image (and its parents)
> > E:\ghc\ghc-6.8.2\bin\hsc2hs.exe --cc=E:\ghc\ghc-6.8.2\bin\ghc.exe
> > --ld=E:\ghc\ghc-6.8.2\bin\ghc.exe --cflag=-package --cflag=SDL-0.5.4
> > --cflag=-package --cflag=base-3.0.1.0
> > --cflag=-IE:\SDL_image-1.2.6\include\SDL
> --cflag=-IE:\SDL-1.2.13\include\SDL
> > -o dist\build\Graphics\UI\SDL\Image\Version.hs
> > Graphics\UI\SDL\Image\Version.hsc
> > E:/ghc/ghc-6.8.2/libHSrts.a(Main.o)(.text+0x7):Main.c: undefined
> reference
> > to `__stginit_ZCMain'
> > E:/ghc/ghc-6.8.2/libHSrts.a(Main.o)(.text+0x36):Main.c: undefined
> reference
> > to `ZCMain_main_closure'
> > collect2: ld returned 1 exit status
> > linking dist\build\Graphics\UI\SDL\Image\Version_hsc_make.o failed
> > command was: E:\ghc\ghc-6.8.2\bin\ghc.exe
> > dist\build\Graphics\UI\SDL\Image\Version_hsc_make.o -o
> > dist\build\Graphics\UI\SDL\Image\Version_hsc_make.exe
> >
> > The results of a limited google search suggests that the __stginit_ZCMain
> > linker error has to do with GHC expecting a main function, but I'm not
> > really sure how that works in context of a library.
> >
> > _______________________________________________
> > Haskell-Cafe mailing list
> > Haskell-Cafe at haskell.org
> > http://www.haskell.org/mailman/listinfo/haskell-cafe
> >
> >
>
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